DENVER, CO – OCTOBER 15: Colorado Avalanche left wing Alex Tanguay (40) skates with the puck as he is followed by Dallas Stars center Ryan Garbutt (16) during the third period October 15, 2013 at Pepsi Center.(Photo By John Leyba/The Denver Post)

“Out for a minimum of two weeks and then he’ll be reevaluated,” Avs coach Patrick Roy said Monday after practice.

Roy adjusted his lines Monday, moving rookie Nathan MacKinnon to the Paul Stastny-centered line where Tanguay played right wing opposite left wing Gabe Landeskog. MacKinnon finished on that line against the Canadiens.

John Mitchell has replaced MacKinnon as the third-line center, with left wing Jamie McGinn and newcomer Max Talbot on the right side.

Roy said the Avs will not call up a forward from the minors, but instead use defenseman Nick Holden as an emergency forward. The Avs have 12 available true forwards and Holden played well up front in his club debut last Friday at Dallas.

The Avs will, however, make a roster move, Roy said. Young defenseman Tyson Barrie, who has mostly been a healthy scratch this season, will be demoted to Lake Erie of the American Hockey League and defenseman Matt Hunwick will be recalled.

The move will save the club some money, because Barrie is on a two-way contract and Hunwick on an NHL-only deal, but Roy said the 22-year-old Barrie “needs to play” and the big club can’t give him that opportunity right now.

Defenseman Andre Benoit also didn’t practice Monday because of a minor groin straight, but will be available Wednesday when the 12-1 Avs host the Nashville Predators.